.bar.positive {
  fill: steelblue;
}

.bar.negative {
  fill: brown;
}
.bar:hover {
  fill: orange;
}

.bar {
    -moz-transition: all 0.3s;
    -webkit-transition: all 0.3s;
    -o-transition: all 0.3s;
    transition: all 0.3s;
}



.axis text {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

#d3tip {
  position: absolute;
  width: 120px;
  height: auto;
  padding: 2px;
  background: lightsteelblue;
  border: 0px;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  -webkit-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  -moz-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

#d3tip.hidden {
  display: none;
}

#d3tip p {
  text-align: center;
  margin: 0;
  font-family: sans-serif;
  font-size: 12px;
}